| Dale Hartt | |
| Other Names: | The Demon |
| Birth Date: | 4 April 1979 |
| Birth Place: | Bangor, Maine, United States |
| Weight: | 155lb |
| Weight Class: | Lightweight |
| Reach: | 69inches[1] |
| Fighting Out Of: | Las Vegas, Nevada, United States |
| Team: | Team Sityodtong Boston |
| Years Active: | 2004–2010 (MMA) |
| Mma Kowin: | 4 |
| Mma Subwin: | 2 |
| Mma Koloss: | 1 |
| Mma Subloss: | 2 |
| Sherdog: | 11970 |
Dale Edward Hartt (born April 4, 1979) is an American mixed martial artist, who is perhaps best known for his three fight stint in the Lightweight division of the Ultimate Fighting Championship.
Hartt made his professional mixed martial arts debut on December 11, 2004, when he faced Gary Bonenfant at Mass Destruction 18. He won the fight via first round submission.[2] Following this win, Hartt would compile an undefeated record of 5–0 before being signed by the Ultimate Fighting Championship in mid-2008.
With an undefeated 5–0 record, Hartt signed with the UFC in June 2008. Hartt made his debut against fellow newcomer Shannon Gugerty at on July 19, 2008.[3] He lost the fight via rear-naked choke.[4] In his second fight with the promotion, Hartt faced Corey Hill at on December 10, 2008.[5] Hartt won the fight via TKO, after Hill broke his leg throwing a kick.[6]
Hartt then faced Dennis Siver at UFC 99 on June 13, 2009.[7] He lost the fight via rear-naked choke, and after dropping to 1–2 in the UFC, was released from the promotion.[8]
In his first fight after being released from UFC, Hartt faced Guillaume DeLorenzi at Ringside MMA: No Escape on June 18, 2010. He lost the fight via shoulder injury TKO.[9]
Dale has two children and now works in finance. After fighting he returned to university and graduated with a degree in finance and management from the University of Maine magna cum laude. Dale still enjoys training and the occasional grappling competition.[10]
|-|Loss|align=center|6–3|Guillaume DeLorenzi|TKO (shoulder injury)|Ringside MMA: No Escape||align=center|2|align=center|0:49|Centre Pierre-Charbonneau, Montreal, Quebec, Canada||-|Loss|align=center|6–2|Dennis Siver|Submission (rear-naked choke)|UFC 99||align=center|1|align=center|3:23|Cologne, Germany||-|Win|align=center|6–1|Corey Hill|TKO (leg fracture)|||align=center|2|align=center|0:20|Fayetteville, North Carolina, United States||-|Loss|align=center|5–1|Shannon Gugerty|Submission (rear-naked choke)|||align=center|1|align=center|3:33|Las Vegas, Nevada, United States|Lightweight debut.|-|Win|align=center|5–0|Keith Ferreira|Submission (strikes)|FFP: Untamed 19||align=center|1|align=center|1:35|Plymouth, Massachusetts, United States||-|Win|align=center|4–0|Matt Lee|KO|FFP: Untamed 11||align=center|2|align=center|N/A|Massachusetts, United States||-|Win|align=center|3–0|Pat Shaw|TKO|FFP: Untamed 6||align=center|2|align=center|1:17|Brockton, Massachusetts, United States||-|Win|align=center|2–0|Wesley Welch|TKO|RITR 11: Rumble in the Ring 11||align=center|2|align=center|1:48|Auburn, Washington, United States||-|Win|align=center|1–0|Gary Bonenfant|Submission|MD 18: Mass Destruction 18||align=center|1|align=center|N/A|Boston, Massachusetts, United States||-